cooper



; riEE s'iE'rEs PATENT loEEioE.

M. T. COOPER, OF BALIS'ION SPA, NEVVYORK.

APPARATUS `F033. CLOSING DOORS.

Specification of Letters Patent No. 8,855, dated April 6, 1852,

To @ZZ fui/om t may concern.'

Be 1t known that I, MINARD THURsToN Ooornn, of Ballston Spa, in the county of Saratoga and State of New York, have invented a new and Improved Mode of Closing Doors with orwithout the Use of a Catch; and I do hereby declarethat the y following is a full and exact description.

The nature ofmy invention consists in a bar with one end attached to the door as at IFI, and theother end beinga forked end. A roller (as at d) is placed between the fork and by opening the door b the roller is made to move up the rail way E; The

rail way E, is fastened at each extremity on a pivot and consequently turns as the door opens, and the weight of the roller (d) runningdown the rail way E, produces a pressure which closes the door. The upper pivot (f) being nearer the easement of the door than the lower pivot it naturally causes the door to shut tight and remain so until to secure by Letters Patent is- Theroller (d) may be made to` The combination of the heavy `roll-er upon a vibrating arm with the turningrail way or inclined plane the former attached to the door and the latter Vto the casing and the `whole operating substantially in the manner and for the purpose herein described.

MINAED THUEsToN COOPER.

IVitnesses:

A. MEEKER. C. W. MEEKER. 

